Vermont Gage 112116860 Class Zz Plus Plug Gage 16.86mm

Product Description

The VERMONT GAGE 112116860 is a Class ZZ Plus plug gage designed for precision dimensional inspection of bored and reamed holes. It measures a nominal diameter of 16.86 mm with a tolerance of 0.00508 mm, making it suitable for go inspection tasks where accurate hole size verification is required. Machined from tool steel with a 10 micro-inch finish, this gage provides the surface quality and wear resistance expected in production and quality-control environments. The overall length is 2.0000 inches. Each unit ships with a Certificate of Accuracy traceable to NIST, supporting documentation requirements in ISO and ASME-compliant quality systems. Installation and use are typically handled by machinists, quality technicians, or tool-and-die professionals.

This plug gage is used in go inspection applications across manufacturing, machining, and metrology environments. It is suited for verifying hole diameters on workpieces in both job-shop and production-floor settings. The gage also serves as a reference standard for setting micrometers, verniers, and other measuring devices. Typical applications include incoming inspection, in-process quality checks, and final part acceptance. It is appropriate for both light manufacturing and precision machining operations where hole tolerance control is critical.

Key Features

• Class ZZ Plus tolerance rating for go inspection applications
• 16.86 mm nominal diameter with 0.00508 mm tolerance
• Tool steel construction with 10 micro-inch surface finish for dimensional stability and wear resistance
• Overall length of 2.0000 inches for standard handle compatibility
• Includes Certificate of Accuracy with NIST traceability for quality-system documentation
• Conforms to ASME B89.1 standards

Compatibility

Designed for use as a go plug gage in standard hole inspection setups and as a setting reference for micrometers, verniers, and other measuring devices in metrology and production quality applications.

Installation Notes

Plug gages should be handled with clean, dry hands or inspection gloves to prevent corrosion from skin oils. Store the gage in its protective case when not in use and allow it to reach ambient temperature before measuring to avoid thermal expansion errors. Do not force the gage into a hole; go gages should enter under their own weight or with light hand pressure only. Periodic re-calibration against a NIST-traceable standard is recommended to maintain measurement integrity.